 We are an independent gem testing and jewellery appraisal laboratory. A member of the Singapore Jewellers Association, we specialize in diamond grading, gemstone identification, and jadeite/jade identification. With our experienced gemologists, we offer you services with integrity, reliability and consistency and enjoyable experience learning all about gemstones. In addition, we have years of conducting gem courses for students in Singapore and Asia region.

We are an independent gem testing and jewellery appraisal laboratory. A member of the Singapore Jewellers Association, we specialize in diamond grading, gemstone identification, and jadeite/jade identification. With our experienced gemologists, we offer you services with integrity, reliability and c

Nan Yang Gemological Institute

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